Key West, FL

Weather Forecast Office

NWS Key West

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Last Map Update: Sat, Oct 24, 2026 at 9:44:14 am EDT

Watches, Warnings & Advisories

National Weather Service National Weather Service

National Weather Service Tampa Bay Area, FL

National Weather Service Miami - South Florida

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Coastal Flood Warning

Coastal Flood Advisory

Small Craft Advisory

Rip Current Statement

Gale Watch

Coastal Flood Watch

Short Term Forecast

This Weekend: Windy, Showers, & Coastal Flooding

Coastal Flood Warning: Upper Keys

Small Craft Advisory

Island Chain

Marine Winds

Wave Heights

Small Craft Advisory Conditions Expected for the next several days. Near-gale breezes possible at times Sunday night through Monday night. Scattered fast-moving showers possible Sunday through Monday night. Confidence in timing remains low at this time. Major coastal flooding in Upper Keys and moderate coastal flooding in the Lower and Middle Keys. Coastal flooding likely to persist into the middle of next week. Right image credit: Laura White.

Coastal Flood Warning in effect for the Upper Keys! Coastal Flood Advisory in effect for the Lower and Middle Keys! Through Sunday morning, saltwater flooding of low elevation streets and lots is expected, with some roads being impassable or saltwater unavoidable. Some storm drains will overflow & some seawalls/docks will be overtopped. Boaters should also expect less clearance under fixed bridges.

A Small Craft Advisory is in effect for all the Florida Keys coastal waters through 5 am EDT early Sunday morning for NE winds of 20 to 25 knots. Gusts up to 30 knots. Seas of 4-7 ft. occasionally to 9 ft Florida Straits and 4-6 ft, occasionally to 8 ft SE Gulf. Wind and wave conditions will be hazardous for small craft. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions.

***A COASTAL FLOOD WARNING REMAINS IN EFFECT FOR THE UPPER KEYS*** ***A COASTAL FLOOD ADVISORY REMAINS IN EFFECT FOR THE LOWER & MIDDLE KEYS*** UPPER KEYS: TODAY: Partly sunny this morning, then becoming mostly sunny. A slight chance of showers. Breezy. Highs in the lower 80s. Northeast winds 15 to 20 mph. Chance of rain 10 percent. LOWER & MIDDLE KEYS: TODAY: Partly sunny this morning, then becoming mostly sunny. A slight chance of showers. Breezy. Highs in the lower 80s. Northeast winds 15 to 20 mph. Chance of rain 10 percent.

TODAY: Moderate to fresh N-NE breezes, except fresh to strong breezes SE Gulf. Seas: Bay/Gulfside 2-4 ft, occasionally to 5 ft, except W of the Marquesas 4-6 ft, occasionally to 8 ft; Hawk Channel 2-3 ft, except W of Cosgrove 4-5 ft, occasionally to 6 ft; FL Straits 4-7 ft, ocsnl 9 ft; SE Gulf 4-6 ft, ocsnl 8 ft. Bay / nearshore waters choppy to rough. A slight chance of showers, except a chance of showers with a slight chance of thunderstorms in the FL Straits.

TODAY: Moderate to fresh N-NE breezes, except fresh to strong breezes SE Gulf. Seas: Bay/Gulfside 2-4 ft, occasionally to 5 ft, except W of the Marquesas 4-6 ft, occasionally to 8 ft; Hawk Channel 2-3 ft, except W of Cosgrove 4-5 ft, occasionally to 6 ft; FL Straits 4-7 ft, ocsnl 9 ft; SE Gulf 4-6 ft, ocsnl 8 ft. Bay / nearshore waters choppy to rough. A slight chance of showers, except a chance of showers with a slight chance of thunderstorms in the FL Straits.

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Heavy Rainfall This Weekend in the Southern Plains and in South Florida; Bering Sea Storm in Alaska

NWS Key West